<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="jquery-1.7.2.min.js"></script>
    <script>
        $.ajax({
            url: "/concurrenthashmapmisuse/loginsubmit",
            dataType: "json",
            type: "POST",
            data: {
                'username':'aaa',
                'password': 'bbb',
                'productCode': 'ccc'
            },
            success: function (data) {
                console.log("hello");
                console.log(data)
            },
            error: function () {
                console.log("服务器异常，请稍后再试!");
            }
        })
    </script>
</head>
<body>


</body>
</html>